US8060895B2 - Disk device tray - Google Patents

Disk device tray Download PDF

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Publication number
US8060895B2
US8060895B2 US12/398,283 US39828309A US8060895B2 US 8060895 B2 US8060895 B2 US 8060895B2 US 39828309 A US39828309 A US 39828309A US 8060895 B2 US8060895 B2 US 8060895B2
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US
United States
Prior art keywords
face
disk
support
side portion
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/398,283
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English (en)
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US20090235291A1 (en
Inventor
Ryuuji Hayashi
Katsuo Ichinohe
Shin'ya YAMAGUCHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Funai Electric Co Ltd
Original Assignee
Funai Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Funai Electric Co Ltd filed Critical Funai Electric Co Ltd
Assigned to FUNAI ELECTRIC CO., LTD. reassignment FUNAI ELECTRIC CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYASHI, RYUUJI, ICHINOHE, KATSUO, YAMAGUCHI, SHINYA
Publication of US20090235291A1 publication Critical patent/US20090235291A1/en
Application granted granted Critical
Publication of US8060895B2 publication Critical patent/US8060895B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
    • G11B17/053—Indirect insertion, i.e. with external loading means
    • G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
    • G11B17/0565—Indirect insertion, i.e. with external loading means with sliding loading means adapted for discs of different sizes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
    • G11B17/053—Indirect insertion, i.e. with external loading means
    • G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means

Definitions

  • the present invention generally relates to a disk device tray. More specifically, the present invention relates to a disk device tray for a disk device.
  • a conventional disk device includes a tray 220 on which two kinds of disk of different diameter (e.g., a small-diameter disk D 1 and a large-diameter disk D 2 ) can be placed.
  • the tray 220 has first and second annular support components 230 and 240 formed at two concentric locations of the tray 220 .
  • An outer peripheral part of the small-diameter disk D 1 is placed on the first support component 230
  • an outer peripheral part of the large-diameter disk D 2 is placed on the second support component 240 .
  • the first support component 230 has a support face 231 on which is placed the outer peripheral part of the lower face of the small-diameter disk D 1 , and a cylindrical upright face 232 that contacts with an outer peripheral end face of the small-diameter disk D 1 and thereby prevents the misalignment of the small-diameter disk D 1 .
  • the second support component 240 has a support face 241 on which is placed the outer peripheral part of the lower face of the large-diameter disk D 2 , and a cylindrical upright face 242 that contacts with an outer peripheral end face of the large-diameter disk D 2 and thereby prevents the misalignment of the large-diameter disk D 2 .
  • the diameters of the cylindrical upright faces 232 and 242 of the first and second support components 230 and 240 are somewhat larger than the diameters of the corresponding disks, which makes it easier to place and remove the disks in the first and second support components 230 and 240 .
  • an upper end position of the upright face 232 of the first support component 230 is located at a lower level than the support face 241 of the second support component 240 . This keeps a recording region of the large-diameter disk D 2 placed on the second support component 240 in a state of non-contact with a flat upper face 221 of the tray 220 and prevents it from being scratched or otherwise damaged.
  • the disk that has been placed on the tray 220 and loaded is clamped by a clamping mechanism and lifted up from the tray 220 . Then, the disk rotates in this state, a recording face of the disk is optically processed through the action of an optical pickup or the like, and information is thereby recorded or reproduced. Also, the disk is moved to the tray 220 as soon as it is unclamped from the clamping mechanism.
  • the depth of the first support component 230 that is, the height H that the upright face 232 rises from the support face 231 , is less than the thickness of the small-diameter disk D 1 .
  • the tray 220 can be made thinner and, in turn, so can the disk device.
  • the pads are affixed at a plurality of places on outside of a support component of the small-diameter disk D 1 .
  • the large-diameter disk D 2 is placed on the pads.
  • the rise height H of the upright face 232 of the first support component 230 is set to be less than the thickness of the small-diameter disk D 1 .
  • This allows the tray 220 to be thinner, and in turn allows the overall disk device to be thinner.
  • this makes it difficult to ensure that the upright face 232 has an adequate contact height (corresponds to the rise height H of the upright face 232 ) with respect to the outer peripheral end face of the small-diameter disk D 1 .
  • the outer peripheral end face of the small-diameter disk D 1 that has been moved from a turntable of the clamping mechanism to the tray 220 upon the unclamping of the clamping mechanism does not always catch on the upright face 232 , and instead rides up over the upright face 232 .
  • the small-diameter disk D 1 will shift away from a proper position in the tray 220 (the position where the entire small-diameter disk D 1 fits into the annular first support component 230 ), and the small-diameter disk D 1 may catch on a housing frame of the disk device, etc., in the midst of the tray 220 being unloaded to the outside of the housing frame, thereby causing a malfunction.
  • the tray having the pads With the tray having the pads, the height that an upright face of the support component for the small-diameter disk D 1 rises from a support face is increased by the thickness of the pads. Therefore, when the small-diameter disk D 1 is placed on the support face, the contact area with respect to the outer peripheral end face of the small-diameter disk D 1 is larger.
  • the pads since the pads have to be attached to the tray, the number of required parts increases, and not only does this make the assembly process more complicated, but the recording region of the large-diameter disk D 2 contacts with the pads. Accordingly, even if a soft material is used for the pads, there is still the risk that the recording region will be scratched or otherwise damaged.
  • One object of the present invention is to provide a disk device tray with which a recording region of a disk can be prevented from being damaged and misalignment of the disk can be prevented.
  • a disk device tray includes a first support component, a second support component and a step component.
  • the first support component has a first support face with a first disk supporting area that is arranged to support an outer edge portion of a lower face of a first disk.
  • the second support component is concentrically formed with respect to the first support component and has a second support face with a second disk supporting area that is arranged to support an outer edge portion of a lower face of a second disk with the second disk supporting area having a larger diameter than the first disk supporting area.
  • the step component is formed between the first and second support components and has an outer side portion and an inner side portion that is located inward with respect to the outer side portion and that protrudes upward with respect to the outer side portion.
  • the inner side portion has a top face that is located lower than the second support face of the second support component and a first inner peripheral face that extends upward from the first support face to the top face of the inner side portion and is arranged to restrict movement of the first disk in a radial direction of the first disk on the first support face.
  • the disk device tray of the present invention it is possible to provide a disk device tray with which a recording region of a disk can be prevented from being damaged and misalignment of the disk can be prevented.
  • FIG. 1 is a top plan view of a tray in accordance with one embodiment of the present invention.
  • FIG. 2A is a cross sectional view of the tray taken along IIA-IIA line illustrated in FIG. 1 ;
  • FIG. 2B is a detail cross sectional view of a thicker portion of the tray illustrated in FIG. 1 ;
  • FIG. 3 is a perspective view of a disk device having the tray illustrated in FIG. 1 ;
  • FIG. 4 is a top plan view of a disk
  • FIG. 5 illustrates a state in which a small-diameter disk has been clamped by a clamping mechanism of the disk device
  • FIG. 6 illustrates a state in which the small-diameter disk is moved to the tray illustrated in FIG. 1 ;
  • FIG. 7 is a top plan view of a tray in accordance with a prior art.
  • FIG. 8 is a cross sectional view of the tray taken along VIII-VIII line illustrated in FIG. 7 .
  • the disk device includes a housing frame 10 , a tray 20 , first and second annular support components 30 and 40 , a clamping mechanism 50 and a thicker portion 60 .
  • the tray 20 is slidably attached to the housing frame 10 to move in and out between retracted and retracted positions.
  • a disk 100 is placed on the tray 20 , and is loaded and unloaded between inside and outside of the housing frame 10 .
  • the disk 100 is a recording medium, such as CD, DVD and BD.
  • the disk 100 is clamped and lifted up from the tray 20 by the clamping mechanism 50 .
  • the disk 100 is rotated in this state, a recording face of the disk is optically processed through the action of an optical pickup or the like, and information is thereby recorded or reproduced.
  • the disk device With the disk device, at least two kinds of disk of different diameter (e.g., small-diameter disk D 1 and large-diameter disk D 2 ) are used.
  • the first and second annular support components 30 and 40 are formed at two concentric locations of the tray 20 .
  • An outer peripheral part of the small-diameter disk D 1 is placed on the first support component 30
  • an outer peripheral part of the large-diameter disk D 2 is placed on the second support component 40 .
  • FIG. 4 is a plan view of the disk 100 as seen from the recording face side.
  • the disk 100 has non-recording regions 121 and 122 at two places, namely, the outer peripheral part and around a center hole 110 .
  • a recording region 123 is provided in an annular region between the non-recording regions 121 and 122 . If the recording region 123 should be scratched or otherwise damaged, this can diminish the recording and reproducing performance of the disk 100 . Accordingly, the non-recording region 122 at the outer peripheral portion of the disk 100 is utilized to place the disk 100 on the tray 20 .
  • the small-diameter disk D 1 is standardized at 8 cm, and the large-diameter disk D 2 at 12 cm. Therefore, the small-diameter disk D 1 is supported by being placed on the first support component 30 on the inside of the tray 20 , while the large-diameter disk D 2 is supported by being placed on the second support component 40 on the outside of the tray 20 .
  • the first support component 30 has a support face 31 on which is placed the outer peripheral part of the lower face of the small-diameter disk D 1 (the face on which the non-recording region 122 is formed), and a cylindrical upright face 32 that contacts with the outer peripheral end face 124 of the small-diameter disk D 1 and thereby prevents the misalignment of the small-diameter disk D 1 .
  • the support face 31 has a disk supporting area (e.g., first disk supporting area) that is arranged to support the outer peripheral part of the lower face of the small-diameter disk D 1 .
  • the second support component 40 has a support face 41 on which is placed the outer peripheral part of the lower face of the large-diameter disk D 2 (the face on which the non-recording region 122 is formed), and a cylindrical upright face (e.g., second inner peripheral face) 42 that contacts with the outer peripheral end face 124 of the large-diameter disk D 2 and thereby prevents the misalignment of the large-diameter disk D 2 .
  • the upright face 42 extends upward from the support face 41 and restricts movement of the large-diameter disk D 2 in a radial direction of the large-diameter disk D 2 .
  • the support face 41 has a disk supporting area (e.g., second disk supporting area) that is arranged to support the outer peripheral part of the lower face of the large-diameter disk D 2 .
  • the disk supporting area of the support face 41 has a larger diameter than the disk supporting area of the support face 31 .
  • the diameters of the cylindrical upright faces 32 and 42 of the first and second support components 30 and 40 are somewhat larger than the diameters of the corresponding disks 100 , which makes it easier to place and remove the disks 100 in the first and second support components 30 and 40 .
  • an upper end position of the upright face 32 of the first support component 30 is located at a lower level than the support face 41 of the second support component 40 . This keeps the recording region 123 of the large-diameter disk D 2 placed on the second support component 40 in a state of non-contact with a flat upper face 21 of the tray 20 and prevents it from being scratched or otherwise damaged.
  • the disk 100 that has been placed on the tray 20 and loaded is clamped by the clamping mechanism 50 and lifted up from the tray 20 . Then, the disk 100 rotates in this state, the recording face of the disk 100 is optically processed through the action of the optical pickup or the like, and information is thereby recorded or reproduced. Also, the disk 100 is moved to the tray 20 as soon as it is unclamped from the clamping mechanism 50 .
  • FIG. 5 illustrates a state in which the small-diameter disk D 1 has been lifted up from the tray 20 and clamped by the clamping mechanism 50 .
  • FIG. 6 illustrates a state in which the small-diameter disk D 1 is moved to the tray 20 upon being unclamped from the clamping mechanism 50 .
  • the clamping mechanism 50 has a turntable 51 that is on stand-by under the loading position of the small-diameter disk D 1 , and a damper 53 that is on stand-by above the loading position.
  • the turntable 51 is rotationally driven by a motor 52 .
  • the clamping mechanism 50 operates as follows.
  • the turntable 51 moves up as indicated by the arrow A in FIG. 5 and accepts the small-diameter disk D 1 resting on the tray 20 . Then, the small-diameter disk D 1 is clamped in the damper 53 . When the turntable 51 moves down, the small-diameter disk D 1 is unclamped from the clamping mechanism 50 , and the small-diameter disk D 1 is then moved from the turntable 51 to the tray 20 by the downward movement of the turntable 51 , as indicated by the arrow B in FIG. 6 .
  • the small-diameter disk D 1 that had been moved from the turntable 51 to the tray 20 is placed with the lower face of the outer peripheral part, on which the non-recording region 122 is formed, on the support face 31 of the first support component 30 . Accordingly, the small-diameter disk D 1 moved to the tray 20 fits loosely in the first support component 30 as shown in FIG. 6 .
  • the first and second support components 30 and 40 are contiguous with inner and outer sides of a thin bottom plate 22 of the tray 20 . Furthermore, the upper face of the bottom plate 22 corresponds to the flat upper face 21 .
  • the tray 20 includes a step portion 70 formed between the first and second support components 30 and 40 .
  • the step portion 70 is formed in an annular shape.
  • the first and second support components 30 and 40 and the step portion 70 are integrally formed from resin as a one-piece, unitary member.
  • the step portion 70 includes an outer side portion 71 and an inner side portion 72 .
  • the inner side portion 72 is located inward with respect to the outer side portion 71 and protrudes upward with respect to the outer side portion 71 .
  • the tray 20 further includes an annular thicker portion 60 at the inner side portion 72 .
  • the thicker portion 60 is formed from a resin integrally with the tray 20 as a one-piece, unitary member, at the outer peripheral portion of the first support component 30 .
  • the thicker portion 60 has an inner peripheral face 61 and a top face 62 .
  • the inner peripheral face 61 is completely contiguous with the upright face 32 .
  • the upright face 32 and the inner peripheral face 61 forms an inner peripheral face (e.g., first inner peripheral face) of the inner side portion 72 that restrict movement of the small-diameter disk D 1 in a radial direction of the small-diameter disk D 1 .
  • the inner peripheral face of the inner side portion 72 has an upper circular edge disposed parallel to a lower circular edge.
  • the top face 62 of the thicker portion 60 is a flat, annular face.
  • the top face 62 is located at a lower level than the support face 41 of the second support component 40 .
  • the top face 62 of the thicker portion 60 is set to a location where it will not contact with the lower face of the large-diameter disk D 2 , the outer peripheral part of whose lower face is placed on the second support component 40 .
  • the top face 62 of the thicker portion 60 is located at the lower level than the support face 41 of the second support component 40 , when the lower face of the outer peripheral part of the large-diameter disk D 2 is placed on the support face 41 of the second support component 40 , there is no risk that the thicker portion 60 will contact with the recording region 123 of the large-diameter disk D 2 and scratch or otherwise damage it. Furthermore, since the thicker portion 60 is formed of resin integrally with the tray 20 , there is no increase in the number of required parts, nor is the assembly process more complicated.
  • the thicker portion 60 is formed in the annular shape. Since the inner peripheral face 61 of the thicker portion 60 that is completely contiguous with the upright face 32 of the first support component 30 is also in an annular shape, no matter in which direction the tray 20 is tilted, the upright face 32 of the first support component 30 and the inner peripheral face 61 of the thicker portion 60 will serve to prevent misalignment of the small-diameter disk D 1 . This is achieved even more reliably by setting the increase in height of the upright face 32 due to the inner peripheral face 61 of the thicker portion 60 to be the same as the portion all the way around the upright face 32 .
  • the thickness H 1 of the thicker portion 60 is added to the rise height H of the upright face 32 .
  • the upright face 32 is increased by the thickness H 1 of the thicker portion 60 all the way around the upright face 32 .
  • the contact area with respect to the outer peripheral end face 124 of the small-diameter disk D 1 that is fitted into the first support component 30 and placed on the support face 31 thereof is the sum of the rise height H of the upright face 32 and the thickness H 1 of the thicker portion 60 . Therefore, once the small-diameter disk D 1 has been fitted into the first support component 30 upon the unclamping of the clamping mechanism 50 , it is unlikely to ride up over the thicker portion 60 and move away from the proper position.
  • the small-diameter disk D 1 is prevented from moving away from the proper position when the tray 20 is tilted. Furthermore, the upper face 21 of the bottom plate 22 of the tray 20 or the top face 62 of the thicker portion 60 will not contact with the lower face of the large-diameter disk D 2 when the outer peripheral part of the lower face of the large-diameter disk D 2 is placed on the second support component 40 .
  • the thicker portion 60 has an annular inclined face (e.g., slope face) 63 .
  • the inclined face 63 has a downward slope that extends outward from the top face 62 and is contiguous with the upper face 21 of the bottom plate 22 . Accordingly, there is less concentration of load at the base of the thicker portion 60 than when the thicker portion 60 rises up at a right angle from the upper face 21 of the bottom plate 22 . Therefore, it is less likely that the bottom plate 22 of the tray 20 will crack at the base of the thicker portion 60 .
  • the thicker portion 60 acts as a reinforcing rib that reinforces the first support component 30 , an advantage is that the thickness of the tray 20 can be reduced while still affording the required strength to the first support component 30 .
  • the aperture angle ⁇ between the annular inclined face 63 and the upper face 21 of the bottom plate 22 is set to an obtuse angle that is greater than 135 degrees. Doing this results in the annular inclined face 63 and the upper face 21 of the bottom plate 22 appearing to be substantially continuous horizontally, and even if the thickness of the bottom plate 22 is reduced, the bottom plate 22 of the tray 20 will be unlikely to crack at the base of the thicker portion 60 .
  • the contact area with respect to the outer peripheral end face of the small-diameter disk D 1 can securely prevent misalignment of the small-diameter disk D 1 without entailing an increase in the number of required parts.
  • the tray 20 is made thinner, the small-diameter disk D 1 will not become misaligned, which would hamper the smooth loading and unloading of the tray 20 .
  • the term “comprising” and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components and groups, but do not exclude the presence of other unstated features, elements, components and groups.
  • the foregoing also applies to words having similar meanings such as the terms, “including”, “having” and their derivatives.
  • the terms “part,” “section,” “portion,” “member” or “element” when used in the singular can have the dual meaning of a single part or a plurality of parts.
  • the following directional terms “forward, rearward, above, downward, vertical, horizontal, below and transverse” as well as any other similar directional terms refer to those directions of a disk device equipped with the present invention. Accordingly, these terms, as utilized to describe the present invention should be interpreted relative to a disk device equipped with the present invention as used in the normal operating position.

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  • Feeding And Guiding Record Carriers (AREA)
US12/398,283 2008-03-11 2009-03-05 Disk device tray Expired - Fee Related US8060895B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008060692A JP2009217893A (ja) 2008-03-11 2008-03-11 ディスク装置のトレー
JP2008-060692 2008-03-11

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US20090235291A1 US20090235291A1 (en) 2009-09-17
US8060895B2 true US8060895B2 (en) 2011-11-15

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US12/398,283 Expired - Fee Related US8060895B2 (en) 2008-03-11 2009-03-05 Disk device tray

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EP (1) EP2101327B1 (ja)
JP (1) JP2009217893A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101275308B1 (ko) * 2010-10-25 2013-06-14 도시바삼성스토리지테크놀러지코리아 주식회사 소음저감유닛을 구비하는 디스크 드라이브 및 이를 이용한 소음저감방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07320468A (ja) 1994-05-24 1995-12-08 Matsushita Electric Ind Co Ltd ディスクトレイ
US5864529A (en) 1997-01-09 1999-01-26 Lite-On Technology Corp. Disk loading device for an optical disk driver
US5930218A (en) 1994-10-24 1999-07-27 Mitsumi Electric Co., Ltd. Disk drive using disk tray
US6370101B1 (en) 1998-09-18 2002-04-09 Lg Electronics, Inc. Tray structure for optical recording reproducing device
JP2002230939A (ja) 2001-01-20 2002-08-16 Samsung Electronics Co Ltd 光ディスクドライブ及び光ディスクドライブ用トレー

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4714111B2 (ja) 2006-08-29 2011-06-29 株式会社日立製作所 管理計算機、計算機システム及びスイッチ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07320468A (ja) 1994-05-24 1995-12-08 Matsushita Electric Ind Co Ltd ディスクトレイ
US5930218A (en) 1994-10-24 1999-07-27 Mitsumi Electric Co., Ltd. Disk drive using disk tray
US5864529A (en) 1997-01-09 1999-01-26 Lite-On Technology Corp. Disk loading device for an optical disk driver
US6370101B1 (en) 1998-09-18 2002-04-09 Lg Electronics, Inc. Tray structure for optical recording reproducing device
JP2002230939A (ja) 2001-01-20 2002-08-16 Samsung Electronics Co Ltd 光ディスクドライブ及び光ディスクドライブ用トレー

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US20090235291A1 (en) 2009-09-17
EP2101327A1 (en) 2009-09-16
JP2009217893A (ja) 2009-09-24
EP2101327B1 (en) 2011-05-25

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